Cita APA

Northrop, J. H., Kunitz, M., & Herriot, R. M. (1948). Crystalline enzymes (2nd ed., rev. and enl.). Columbia University Press.

Citación estilo Chicago

Northrop, John Howard, Moses Kunitz, and Roger Moss Herriot. Crystalline Enzymes. 2nd ed., rev. and enl. New York: Columbia University Press, 1948.

Cita MLA

Northrop, John Howard, et al. Crystalline Enzymes. 2nd ed., rev. and enl. Columbia University Press, 1948.